24   struct cbb_buffer_st *base;  in cbb_init()  local
26   base = OPENSSL_malloc(sizeof(struct cbb_buffer_st));  in cbb_init()
27   if (base == NULL) {  in cbb_init()
31   base->buf = buf;  in cbb_init()
32   base->len = 0;  in cbb_init()
33   base->cap = cap;  in cbb_init()
34   base->can_resize = 1;  in cbb_init()
37   cbb->base = base;  in cbb_init()
63   cbb->base->can_resize = 0;  in CBB_init_fixed()
68   if (cbb->base) {  in CBB_cleanup()
69     if (cbb->base->can_resize) {  in CBB_cleanup()
70       OPENSSL_free(cbb->base->buf);  in CBB_cleanup()
72     OPENSSL_free(cbb->base);  in CBB_cleanup()
74   cbb->base = NULL;  in CBB_cleanup()
77 static int cbb_buffer_add(struct cbb_buffer_st *base, uint8_t **out,  in cbb_buffer_add()  argument
81   if (base == NULL) {  in cbb_buffer_add()
85   newlen = base->len + len;  in cbb_buffer_add()
86   if (newlen < base->len) {  in cbb_buffer_add()
91   if (newlen > base->cap) {  in cbb_buffer_add()
92     size_t newcap = base->cap * 2;  in cbb_buffer_add()
95     if (!base->can_resize) {  in cbb_buffer_add()
99     if (newcap < base->cap || newcap < newlen) {  in cbb_buffer_add()
102     newbuf = OPENSSL_realloc(base->buf, newcap);  in cbb_buffer_add()
107     base->buf = newbuf;  in cbb_buffer_add()
108     base->cap = newcap;  in cbb_buffer_add()
112     *out = base->buf + base->len;  in cbb_buffer_add()
114   base->len = newlen;  in cbb_buffer_add()
118 static int cbb_buffer_add_u(struct cbb_buffer_st *base, uint32_t v,  in cbb_buffer_add_u()  argument
126   if (!cbb_buffer_add(base, &buf, len_len)) {  in cbb_buffer_add_u()
146   if (cbb->base->can_resize && (out_data == NULL || out_len == NULL)) {  in CBB_finish()
152     *out_data = cbb->base->buf;  in CBB_finish()
155     *out_len = cbb->base->len;  in CBB_finish()
157   cbb->base->buf = NULL;  in CBB_finish()
168   if (cbb->base == NULL) {  in CBB_flush()
180       cbb->base->len < child_start) {  in CBB_flush()
184   len = cbb->base->len - child_start;  in CBB_flush()
219       if (!cbb_buffer_add(cbb->base, NULL, extra_bytes)) {  in CBB_flush()
222       memmove(cbb->base->buf + child_start + extra_bytes,  in CBB_flush()
223               cbb->base->buf + child_start, len);  in CBB_flush()
225     cbb->base->buf[cbb->offset++] = initial_length_byte;  in CBB_flush()
230     cbb->base->buf[cbb->offset + i] = len;  in CBB_flush()
237   cbb->child->base = NULL;  in CBB_flush()
255   cbb->offset = cbb->base->len;  in cbb_add_length_prefixed()
256   if (!cbb_buffer_add(cbb->base, &prefix_bytes, len_len)) {  in cbb_add_length_prefixed()
262   out_contents->base = cbb->base;  in cbb_add_length_prefixed()
293   cbb->offset = cbb->base->len;  in CBB_add_asn1()
299   out_contents->base = cbb->base;  in CBB_add_asn1()
311       !cbb_buffer_add(cbb->base, &dest, len)) {  in CBB_add_bytes()
320       !cbb_buffer_add(cbb->base, out_data, len)) {  in CBB_add_space()
331   return cbb_buffer_add_u(cbb->base, value, 1);  in CBB_add_u8()
339   return cbb_buffer_add_u(cbb->base, value, 2);  in CBB_add_u16()
347   return cbb_buffer_add_u(cbb->base, value, 3);  in CBB_add_u24()